Design method of transportation capacity reservation based on single heat source and single loop heating network model

 In order to maintain the limited heat supply of the loop heating network of fault conditions, a general method for the reserve design of the transportation capacity is proposed. A simplified heating network model is constructed based on a single heat source and single loop heating network. The expressions of pipeline flow distribution, pipe diameter and mainline resistance are derived, when the limited flow rate coefficient is larger than 0.5. The simplified relationship between pipeline capacity and cyclic power reserve coefficient when the number of characteristics of the pipe network model is greater than five is given, and a nomograph is provided. Finally, the case calculations show that the simplified relational formula proposed has certain applicability and effectiveness, and the design results are conservative in most cases.